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    Application of amplitude thresholding to aid minimum energy adaptive subtraction for multiple attenuation

    117653_9091_44Paul WellingtonHartleyKepicSEG.pdf (3.194Mb)
    Access Status
    Open access
    Authors
    Wellington, P.
    Hartley, Bruce
    Kepic, Anton
    Date
    2008
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Wellington, Paul and Hartley, Bruce and Kepic, Anton. 2008. Application of amplitude thresholding to aid minimum energy adaptive subtraction for multiple attenuation, in Society of Exploration Geophysicists. (ed), 78th Annual SEG Conference, Nov 9 2008, pp. 3635-3638. Las Vegas, USA: Society of Exploration Geophysics.
    Source Title
    SEG Las Vegas 2008 Annual Meeting
    Source Conference
    78th Annual SEG Conference
    DOI
    10.1190/1.3064087
    Faculty
    Department of Exploration Geophysics
    Faculty of Science and Engineering
    The Western Australian School of Mines
    Remarks

    Published by the Society of Exploration Geophysicists.

    Copyright © 2008 Society of Exploration Geophysicists.

    The link to the journal’s home page is: http://segdl.org/geophysics

    URI
    http://hdl.handle.net/20.500.11937/5013
    Collection
    • Curtin Research Publications
    Abstract

    Model based multiple prediction approaches require an adaptive subtraction step that is able to correct for differences between the real and predicted multiples. The commonly used subtraction process derives shaping operators, in the least squares sense, to minimize the energy difference between the predicted multiples and the field record. Although the minimum energy assumption allows a computationally efficient adaptive subtraction, it can lead to attenuation of primary information. This abstract illustrates how a simple amplitude clipping approach can significantly improve the effectiveness of the least squares adaptive subtraction and minimize primary attenuation.

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